For the people who are making use of a Sony projector, here is a replacement air filter to make sure that all parts of your projector are properly monitored for continued and optimum performance. The Sony PKHS10FL Cineza Replacement Air Filter is designed to work with specific Sony video Cineza LCD front projectors. This Sony Cineza air filter is compatible with the following Sony video projector models:

• VPL-HS10
• VPL-HS20
• VPL-HS51

Price: $29.99

(Source) Amazon